Model 279B-120 DC Current Monitor
The Model 279B-120 DC Current Monitor provides reliable current monitoring for industrial applications. Operating on 120VAC, it handles a 1-10 Amps current range with a maximum continuous current of 15 Amps. Its robust design includes transient protection up to 2500 VRMS for 10ms, safeguarding critical systems from electrical disturbances. Users can fine-tune performance with 0% to 100% hysteresis adjustment and select automatic or manual reset functionality for operational flexibility. The unit maintains a repeat accuracy of 1% maximum across an operating temperature range of -20° to +131° F, ensuring consistent performance in varied environments. With an expected mechanical relay life of 10 million operations and a 5-year unconditional warranty, the 279B-120 offers sustained operational integrity and reduced maintenance concerns. Its SPDT 10A output contacts provide versatile control for diverse system integrations.
Dc Current Monitor
Specifications
| Current range | 1-10 Amps |
|---|---|
| Supply voltage | 120VAC |
| Power consumption | 5.3W |
| Input frequency | 50-60Hz |
| Maximum current | 15 Amps continuous |
| Maximum surge current | 100A for 100ms |
| Transient protection | 2500 VRMS for 10ms |
| Hysteresis adjustment | 0% to 100% |
| Reset | Automatic or Manual |
| Repeat accuracy | 1% maximum |
| Output contacts | SPDT 10A at 240VAC resistive |
| Expected relay life (Mechanical) | 10 million operations |
| Expected relay life (Electrical) | 100,000 operations at rated load |
| Operating temperature | -20° to +131° F |
| Humidity tolerance | 0-97% w/o condensation |
| Mounting | socket sold separately |
| Case material | ABS plastic |
| Socket Type | 8-pin |
| Recommended Socket | 51X120 |
| Adjustment Type | Screwdriver adjustable trip and hysteresis setting |
| Indicator | LED |
| Warranty | 5-Year Unconditional Warranty |
| Dimension Tolerance | ± 0.06 |
